Improved artificial fuel



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Letters Patent No. 71,119, dated November 19, 1867.

IMPROVED ARTIFIOLAL FUEL.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JAMES E. ATwooD, of Trenton, in the county of Mercer, in the State of New Jersey, have invented a new and useful Improvement in Artificial 'Fuel, the same being an improvement upon the artifieial fuel'patented to Willi m Halsted.

My improvement consists in adding to the coal tar, eonl dust, and pest, of which his fuel is composed, another material, and for a specific purpose or purposes. i i i In the use of-his valuable composition for certain purposes, and under certain conditions, and also in the use of many other kinds of artificial fuel, the odor given off by some of the ingredients, and particularly by the coal tar or bog peat, is very strong and ofiensive. When used for steanrboilers, the amount of soot deposited in the flues is so considerable as materially to clo them, or to fill them up. -There is also a disposition of the material, when being pressed and moulded into blocks for the market to stick to the mould, and so retard the operation, as well as make a less symmetrical block. i I

By thcintroductioninto the compositiondescribed in said above-mentioned patent, of lime, as an additional ingredient, [remedy all these cliificulties. I find in practice that'good results are attained by adding to about,

say, a ton of his mixture, some fifty pounds, more or less, of lime. Other proportions will also he found prac-.

ticable and productive of good results, and will necessarily vary with the quality of the several materials, and the special purpose for which, the fuel is to be used. t

The beneficial results which I find attend the use of my improved fuel are as follows, and which I attribute to the introduction of lime into the compound: first, the very ofi'ensive odor of the coal tar-or bog pent is mostly if not entirely neutralized; second, it'prevents the accumulation, in the furnaceior other apparatus in which it may be burned, and also in the fines of steam-boilers of the soot arising from the resinous substances in the coal tam or from other material; third, it burns with a brighter Home and intenseheat; fourth,- it prevents the compound, when being moulded into blocks or cakes for market, from clinging to the mould, and therefore turns out in more marketable and salable shape. 1

I do not claim a compound made up only of coal tar, coal dust, and peat, but

I claim an artificial fueleomposed of coal tar, coal dust, peat and lime, substantially as described.

JAMES E. ATWOOD. Witnesses WM. JOHNSTON, JAMES Rooms lllili 

